Mechanism for packing granular material.



Patented Jan. 28, |902.

E. L. BRACY.

MECHANISM' FUR PACKING GBANULAR MATERIAL.

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Patented lan. 28, |902.

l E. L. nAcv. MECHANISM FOR PACKINGy GHANULAR MATERIAL.

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No. 691,930. Patented 1an. 2a, |902. E. L. nAcY.

MECHANISM FDR PACKING GRAN'ULAR MATERIAL.

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THE wams PETERS co.. mmTo-Llwo.4 wAsume'roN. u` c NTTED STATES PATENTOFFICE.-

EDWARD L. BRACY, OF BROOKLYN, NEW YORK.

MECHANISNI FOR PACKING GRANULAR MATERIAL.

SPECIFICATION forming part of Letters Patent N o. 691,930, dated January28, 1902.

Application led May 7, 1901. SerialrNo. 59,117. (No model.)

To Cif/ZZ whom it may concern.-

Be it known that LEDWARD L. BRACY,a citizen of the United States ofAmerica, residing in the borough of Brooklyn, in the county of Kings,State of New York, have invented Improvements in Mechanism for Packing iGranular Material, of which the following is a specification.

The main object of my invention is to facilitate and improve thepackaging of granular materials, such as granulated sugar, teas, snuff,pulverulent tobacco, or the like, in Wrappers. In carrying out myinvention I avail myself of a well-known type of wrapping-machines, inwhich the material to be inclosed is first fed to a wrapper held inplace in a recess or a receptacle of a mold-wheel, which wrapper isafterward folded over the material. Such a machine will be foundillustrated and described in Roses United States Patent No. 586,076.

To illustrate my invention, I have shown parts of the Rose machineprovided with my improvements in the drawings accompanying thisspecification; but I do not wish to be restricted to carrying ont myinvention with this machine, as it will be obvious that my invention isapplicable to any wrappingmachine of that class in which the folding isdone after feeding the material to the wrapper and the packagemanipulated while in the horizontal position.

In the accompanying drawings, Figure l is a sectional view of enough ofa Rose Wrapping-machine provided with my improvements to illustrate myinvention. Fig. 2 is a similar view of part of Fig. l, but showing thepackage just as it has received the material to be wrapped. Fig. 3 is aside View of a part of Fig. l. Figs. 4 and 5 are enlarged views of thecardboard-feeding device. Fig. 6 is a View of the package, showing thecardboard strips in place in a wrapper ready for lling with thematerial. Fig. 7 is a perspective view showing the top edges of thewrapper folded over the package. Fig. 8 is a sectional view of thepackage of Fig. 7 and a portion of the mold-wheel, taken through thelongitudinal center line of the package; and Fig. 9 is a view similar toFig. 8 of the completed package in the mold-wheel.

The following brief description of the mechanism and operation of theRose machine will facilitate the understanding of this invention.

In Figs. l, 2, and 3, H is the chute orhopper, to which the material tobe packed is fed in front of the plunger P, while M is the rotatingmold-wheel, having recesses c, to which the wrappers w are fed, eachbeing tucked into the recess c by suitable means and held there by toesT on the ends of levers Z. Side plungers p p are operated so as to takeup positions within the wrapper at the side of the mold-wheel before thematerial m is fed to the recess c, thereby forming two solid ends to thepackage during the pressure of the plunger P in forming the package. Theloes T have in the meanwhile been withdrawn from the wrapper w. Upon therotation of the mold-wheel the top sides of the wrapper, which havehitherto been in the positions illustrated, Figs. 3 and 6, areV nowfolded over the material and the plungers p p by the clamping-plate 25,Fig. 8. These plungers p p meantime hold the material in place; but toinclose the ends of the package by folding the extending ends of thewrapper obviously necessitates the Withdrawal of the plungers p p, thenleaving theA ends of the material free. This is unimportant when packingstringy material; but it prevents the use of the Rose machine forpackaging loose granular material, such as pulverulent tobacco or likematerials, so line that they will flow down out of their formed positionon the withdrawal of the plungers p p to finish the formation of thepackage. I meet and get over the difficulty by placing within thewrapper cardboard or the like reinforcing ends before the material isplaced therein, and I allow these end pieces to remain in positionthroughout the packing operation and in the finished package. For thispurpose I mount upon the frame Aof the machine boxes B B above and oneon each side of the rotating mold-wheel M and opposite the sides of thehopper H. These boxes are supplied with cards l0, which are pressedtoward thev hopper by a plunger l, actuated by a spring 2. Between theinner ends of the boxes B B and the hopper H, I mount an inter- IOOmittently-reciprocating card-selecting plunger 3 3, Which may beoperated in any suitable manner, so long as it is timed to select a cardWith its undercut edge 4, Figs. et and 5, and place it in a Wrapperbefore the plunger P has completed its packing stroke. These cards areheld in place against the pressure of the plunger P by the beforedescribed plungers p p. After the Withdrawal of the plun gers the cardshave enough frictional hold in the Wrappers to prevent the joggling outof the cards or the granular material.

I have shown in Figs. 1, 2, and 3 mechanism for operating thecard-selectors, consisting of a cam 5 on a cam-shaft 15, a lever 6,operated by the cam and fast on the shaft 7. At the other extremity ofthe lever 6 I have shown a segmental gear S engaging With a like gear 9on a shaft 12 in bearings 11 on the frame A. To the other end of theshaft 12 I secure a segmental gear 13, engaging with a like gear 14 onthe end of a lever 15, pivoted at 16 to the frame. The other end of thelever 15 is formed with a nosepiece 17', adapted to bear on the hardenedsurface 13 of the selector 3 -by its under side, While anadjusting-screw 19 on the selector bears on the upper side of thenosepiece. A cranked connecting rod or shaft 70 (shown dotted in Fig. 3)connects the lever 6 on one side of the machine with the correspondinglever 6 on the other side of the machine to cause both selectors to actsimultaneously. These mechanisms are preferably so timed as to cause thecards to be inserted in the Wrapper just before the material is fedthereto. The selectors 3 3 may be withdrawn either before or after thematerial has been fed to the package Without materially altering theefficiency of the operation.

By using the reinforcing ends I am enabled to not only get a more nearlyair-,tight package than formerly, but I am also enabled to paste theinclosing ends of the Wrapper to `each other in a much more secure andefficient manner, due to the increased stability of the package.

I claim as my invention- 1. The herein described mechanism for packaginggranular material in Wrappers,con sisting of means for feedingreinforcing ends to an open wrapper, means for feeding the material tothe Wrapper between lthe reinforcto inclose the material andthereinforcing ends, substantially as described.

2. The herein described mechanism for packaging granular material,consisting of a mold-wheel having a recess, a card-box, a selectoradapted to select cards from the box and feed them to the wrapper in therecess, means for feeding material to the Wrapper, and operatingmechanism timed to act on the selector to place the cards in the Wrapperbefore the material has been fed thereto.

3. The herein described mechanism for packaging granular material,consisting of a rotating mold wheel having recesses and means forfeeding material to the wrapper in each recess and means for folding theWrapper in combination with means for feeding reinforcing ends to theopen Wrapper before the folding of the latter about the material.

4. The herein-described machine for packaging granular material,consisting of a rotating mold-Wheel having recesses, a plunger to pressthe material into the Wrapper in each recess, plungers to hold thematerial at the edges of the recess, and means to fold the Wrapper, incombination with means for supplying reinforcing end pieces in front ofsaid plungers at the edges of the recess.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

EDWARD L. BRAGY.

Witnesses:

HUBERT HovvsoN, F. WARREN WRIGHT.

lng ends and means for folding the Wrapper

